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FINLJUX
5000-Series For Service Manuals Contact
MAURITRON TECHNICAL SERVICES
8 Cherry Tree Rd, Chinnor
Oxon OX9 4QY
Tel:- 01844-351694 Fax:- 01844-352554
Etnal:- [email protected]




.. -f?I.Servloe Manuals
MAURITRON SERVICES
8 Chorry Tro« Road, Chinnor
Oxfordshire, 0X9 4QY.
Tel (01844) 351694
Fax (01844)3525S4
email:- mauritron Odial.pipex.com




5021F12 5025E17 5025K10
5025F12 5028E17 5028K10
5028F12



Service manual 5-0 ^cl
Serviceanleitung N 6^
Serviceanvisning
Huolto-ohje
INHALTSVERZEICHNIS
Technical data ...1 Technische Daten 1
TV channels ...3 Fernsehkanäle 3
Block diagrams ...4 Blockschaltbilden 4
Service position pictures ...6 Servicelagen 6
Service adjustments ...8 Service-Einstellungen 13
Schematic diagrams .28 Schaltpläne 28
Grid references of the main board. .40 Grid references 40
Spare parts .42 Ersatzteileliste 42



TECHNICAL DATA TECHNISCHE DATEN

Mains power Netzanschluss 187-260V, 50 Hz

Power consumption (norm.) Leistungsaufnahme (Norm.) 90 W

Picture tube Bildröhre 28771 cm 110°
25763 cm 110°
21755cm 110°

Programme memory locations Vorwählbare Kanäle 48
With the SA501 Mit SA501 87

AV memory locations AV-Speicherplätze

Sound output Ton-Endstufe 2 x 20 W / 4 il (music)

Chassis Ausstattung
Mains isolated Netzisolerd
Digital controlled Digitalkontrolliert

Connections Anschlüsse
On the front panel Auf der Frontplatte
Headphones Kopfhöreranschluß 8 - 600 Q; 6,3 mm
S-VHS Mini-Din (in) S-VHS Mini-Din (Eingang)
2xRCA Audio (in) 2xRCA Audio (Eingang)
RCA Video (in) RCA Video (Eingang)

On the rear panel Auf der Rückwand
Audio/video (SCART1) Audio/video (SCART1) Audio out: 0,5 V/1 kQ
Audio in: 0,5 V/1 OkQ
Video out: 1 V/75 Q
Video in: 1 V/75 Q.
Y/C in (SVHS)

Audio/video (SCART2) Audio/video (SCART2) Audio out: 0,5 V/1 kQ
Audio in: 0,5 V/1 OkQ
RGBin:0,7V/75Q
Video out: 1 V/75 Q
Video in: 1 V/75Q

Loudspeakers Zusatzlautsprecher min. 2 0 . W / 4 Q
Aerial Antenneneingang 75Q


Specifications subject to change Änderungen vorbehalten
INNEHALL SISALLYSLUETTELO
Tekniska data ... 2 Tekniset tiedot 2
Kanaltabell 3 Kanavataulukko . 3
Blockschemor 4 Lohkokaaviot 4
Servicelägen 6 Koteloiden huoltoasennot 6
Serviceinställningar . 18 Huoltosäädöt 23
Kopplingsschemor 28 Kytkentäkaaviot 28
Grid reference . .. 40 Grid reference 40
Reservdelar 42 Varaosaluettelo 42



TEKNISKA DATA TEKNISET TIEDOT

Nätansiutning Verkkoliitäntä 187-260V, 50 Hz

Effektförbrukning Tehontarve
Normalt bild/ljud Normaali kuva/ääni 90 W

Bildrör Kuvaputki 28771 cm 110°
25763 cm 1 1 0°
21755cm 110°

Antal programminnen Ohjelmamuistipaikkoja 48
Med SA501 SA501 asennettuna 87

Antal AV minnen AV-muistipaikkoja 4

Ljudeffekt Ääniteho 2 x 20 W / 4 0 (music)

Chassi Kojeisto
Nätisolerad For Service Manuals Contact
Verkkoeristetty MAURITRON TECHNICAL SERVICES
Digitalstyrd Digitaaliohjattu 8 Cherry Tree Rd, Chinnor
OxonOX94QY
Tel:- 01844-351694 Fax:- 01844-352554
Anslutningar Liitännät Email:- [email protected]
Pâ framsidan Etupaneeli
Anslutning for hörlurar Kuulokkeet 8 - 600 Q; 6,3 mm
S-VHS Mini-Din IN S-VHS Mini-Din (tulo) *

2xRCA Audio IN 2xRCA Audio (tulo) *

RCA Video IN RCA Video (tulo) *



Pâ baksidan Takapaneeli
Audio/video (SCART1) Audio/video (SCART1) Audio out: 0,5 V/1 kQ
Audio in: 0,5 V/10kQ
Video out: 1 V/75 Q
Video in: 1 V/75 Q
Y/C in (SVHS)

Audio/video (SCART2) Audio/video (SCART2) Audio out: 0,5 V/1 kQ
Audio in: 0,5 V/1 0 kft
RGBin:0,7V/75Q
Video out: 1 V/75 Q
Video in: 1 V/75 Q

Extra högtalaranslutning Kaiuttimet min. 20 W/ 4 Q
Antennanslutning Antenni 75Q.


Förbehâll for ändringar Oikeudet muutoksiin pidätetään
TV CHANNELS
8 different TV channels described on the tables 1, 2, 3 and 4 can be stored in the receiver's memory locations
...48.
ihto the receiver's memory there have been preprogrammed 4 different channel tables: Table 1 consists of
most European TV channels, Table 2 consists of East-European channels, Table 3 consists of French chan-
nels and on Table 4 frequencies are with 4 MHz raster. A new channel table is selected in tuning mode by en-
tering the first channel number of the desired channel table:
1. Press the PRG button.
2. Select the tuning mode by pressing the red button.
3. Enter the desired channel number.
E.g. Channel table 3 is selected by entering channel number 305 with the number buttons.
4. Start the channel search by pressing the red button etc.
The selected channel table stays active until a new will be selected.

CHANNEL TABLE 1
Channel Band MHz Channel Band MHz Channel Band MHz


CCIR CHANNELS S-CHANNELS (CABLE) S30 130 HYPER 375,25
S31 131 HYPER 383,25
S1 101 VHP I 105,25 S32 132 HYPER 391,25
E2 002 VHP I 48,25 S2 102 VHP III 112,25 S33 133 HYPER 399,25
E3 003 VHP I 55,25 S3 103 VHP III 119,25 S34 134 HYPER 407,25
E4 004 VHP I 62,25 S4 104 VHP III 126,25 S35 135 HYPER 415,25
S5 105 VHP III 133,25 S36 136 HYPER 423,25
E5 005 VHP III 175,25 S6 106 VHP III 140,25 S37 137 HYPER 431,25
S7 107 VHP III 147,25 S38 138 HYPER 439,25
E12 012 VHP III 224,25 S8 108 VHP III 154,25 S39 139 HYPER 447,25
S9 109 VHP III 161,25 S40 140 HYPER 455,25
21 021 UHF 471,25 S10 110 VHP III 168,25 S41 141 HYPER 463,25
S11 111 VHP III 231,25 S'1 .151 VHP I 69,25
69 069 UHF 885,25 S12 112 VHP III 238,25 S'2 152 VHP I 76.25
vnr HI VAC oc C'O
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S14 114 VHP III 252,25 S'4 154 VHP I 90,25
ITALIAN CHANNELS S15 115 VHP III 259,25 S'5 155 VHP I 97,25
S16 116 VHP III 266,25
A 013 VHP I 53,75 S17 117 VHP III 273,25
B 014 VHP I 62,25 S18 118 VHP III 280,25 IRISH CHANNELS
C 015 VHP I 82,25 S19 119 VHP III 287,25
D 016 VHP III 175,25 S20 120 VHP III 294,25 IA 070 VHP I 45,75
E 017 VHP III 183,75 S21 121 HYPER 303.25 IB 071 VHP I 53,75
F 018 VHP III 192,25 S22 122 HYPER 311.25 1C 072 VHP I 61,75
G 019 VHP III 201,25 S23 123 HYPER 319.25 ID 073 VHP III 175,25
H 020 VHP III 210,25 S24 124 HYPER 327.25 IE 074 VHP III 183,25
S25 125 HYPER OS35.25 IF 075 VHP III 191,25
S26 126 HYPER 343.25 IG 076 VHP III 199,25
S27 127 HYPER 351.25 IH 077 VHP III 207,25
S28 128 HYPER 359.25 II 078 VHP III 215,25
S29 129 HYPER 367,25 IJ 079 VHP III 223,25
S30 130 HYPER 375.25



CHANNEL TABLE 2 CHANNEL TABLE 3 CHANNEL TABLE 4
Channel Band MHz Channel Band MHz Channel Band MHz


EAST-EUROPEAN CHANNELS FRENCH CHANNELS FREQ. WITH 4 MHz RASTER
R I 201 VHP I 49,75 05 305 VHP III 176,00 F044 401 VHP I 44,25
R2 202 VHP I 59,25 06 306 VHP III 184,00 F048 402 VHP I 48,25
R3 203 VHP I 77,25 07 307 VHP III 192,00 F052 403 VHP I 52,25
R4 204 VHP I 85,25 08 308 VHP III 200,00 F056 404 VHP I 56,25
R5 205 VHP I 93,25 09 309 VHP III 208,00
10 310 VHP III 216,00 F112 418 VHP III 112,25
R 6 206 VHP III 175,25 F116 419 VHP III 116,25
R7 207 VHP III 183,25 F120 420 VHP III 120,25
R8 208 VHP III 191,25 CABLE CHANNELS
R9 209 VHP III 199,25 F304 466 HYPER 304,25
R10 210 VHP III 207,25 Fc80 380 VHP III 116,75 F308 467 HYPER 308,25
R11 211 VHP III 215,25 Fc81 381 VHP III 128,75 F312 468 HYPER 312,25
R12 212 VHP III 223,25
Fc95 395 VHP III 296.75 F436 499 HYPER 436.25
SERVICE ADJUSTMENTS VIA IIC DATA BUS
Before making adjustments with RC hand unit, make sure the supply voltage is correctly adjusted. (See Service
adjustments/power supply block)

SERVICE MODE SELECTION NP

TV receiver is set to the service mode by switching the receiver on by pressing the mains switch and within 5 seconds
the TV, PRG and EXT buttons successively. In the service mode an adjustment bar (register number, adjustment
value and min/max values) is shown on the screen.

The version number of the NVM on the screen indicates the
selected service mode.The first digit shows the series, the Reg Min Value Max
second digit shows the version number (eq. 50, where 5 =
5000-series and 0 = first version of the NVM). The version 05 50
number of the NVM can also be asked by pressing "05"
buttons.

You can select the normal TV mode or the service mode again by pressing the TV (TV mode) or EXT (service mode)
button. Return from service mode to normal TV mode by reseting the set with the mains switch.

REMOTE CONTROL COMMANDS IN SERVICE MODE
Number buttons and cursor buttons (left and right) of the hand unit are used for service adjustments. Analog cont-
rols function normally; teletext controls and other special controls don't function.
For Service Manuals Contact
MAURITRON TECHNICAL SERVICES
8 Cherry Tree Rd, Chinnor
Oxon OX9 4QY
Making the service adjustments TO:-01844-351694 Fax:- 01844-352554
Email!- [email protected]

1. Give a two numbered code which determines the adjust- Reg Min Value Max
ment (e.g. 17 =picture width) with number buttons. 17 00 IF 3F

2. Make the adjustment by pressing the cursor buttons (left Reg Min Value Max
or right). The earlier stored adjustment value is shown 3F
red coloured.
17 00 02

3. Store the adjusted value to the NVM by pressing the blue Reg Min Value Max
button. You must store each function separately. 17 00 02 3F

Alternative
For special settings
1. Give a two numbered code which determines the adjust- Reg Min Value Max
ment (e.g. 17 =picture width) with number buttons. 17 00 02 3F

2. Select binary code display by pressing the red button. Reg 7 6 5 4 3 2 1 0
17 0 0 0 0 0 0 1 0

3. Activate the adjustment by pressing the yellow button.

4. Make the adjustment by pressing the number buttons.
E.g number button 4 will change the logical level of the Reg 7 6 5 4 3 2 1 0
bit number 4 from 0 to 1. The earlier stored adjustment 17 0 0 0 1 0 0 1 0
value is shown red coloured.

5. Store the adjusted value to the NVM by pressing the blue
button. You must store each function separately. If you
don't want to store the adjustment, press the i button.
CONFIGURATION AND FAULT DIAGNOSIS FOR CIRCUITS CONNECTED
TOTHEIIC-BUS

By pressing 04 in the service mode, the processor checks all possible addresses of bus driven circuits and shows
the found addresses on the screen. The set must be configurated after adding or removing some options.


Reg Configuration
04 22 AE 00

5W Bus Addresses
01 22 88 86 40 80 84 8C CO AO A4 A8 AC

The old configuration value is shown on the screen until new configuration is stored into NVM by pressing the blue
button. The set takes the new configuration in use only after reseting the set with the mains switch. The configura-
tion serves also as a fault diagnosis system.

Note! Disconnect the antenna cable before starting the configuration. Make the configuration always without signal.I

Address Circuit

10 HP software version, ICa1 (SDA20320)
12 \iP of the build in satellite receiver, ICf2 (S83C751)
22 Computer Controlled Teletext (CCT), ICt4 (SAA5246)
2E PIP Processor, ICp4 (SDA9088-2)
88 RGB Processor (RGB), ICe4 (TDA4680)
40 Nicam Controller, ICr4 (PCF8574)
86 Video/Audio Switch, ICe1 (TEA6415)
80 Sound Processor, ICd3 (TDA8421)
84 A2-Stereo/Dual Sound Identifier, ICd2 (TDA8415)
8C Sync Controller, ICh2 (TDA8433)
CO Hyperband Tuner PLL, (TSA5510)
C6 UHF Tuner PLL, (TSA5510)
AO NVM/Service Adjustment Block AO, ICa2 (SDA2586) 2 kbits
A2 Sat NVM/Service Adjustment Block A2, ICf 1 (SDA2586) 2 kbits
A4 NVM/Memory Block A4, ICa2 (SDA2586) 2 kbits
A6 Sat NVM/Memory Block A6, ICf1 (SDA2586) 2 kbits
A8 NVM/Memory Block AB, ICa2 (SDA2586) 2 kbits
AA Sat NVM/Memory Block AA, ICf1 (SDA2586) 2 kbits
AC NVM/Memory Block AC, ICa2 (SDA2586) 2 kbits
AE Sat NVM/Memory Block AE, ICf1 (SDA2586) 2 kbits
Sat sw
01 |iP software version of the build in satellite receiver


For Service Manuals Contact
MAURITRON TECHNICAL SERVICES
8 Cherry Tree Rd, Chinnor
Oxon OX9 4QY
Tel:-01844-351694 Fax:- 01844-352554
Email:- [email protected]
SERVICE ADJUSTMENTS VIA IIC BUS
Code Min. Approx. Max. Adjustment Note!
value

04 Configuration
05 51 NVM version

10 00 1F 3F Line osc. frequency Connect the pin 5 of ICh1 (TP28) to the
ground before adjustment. If the software
version is 1 0 or later the short circuit is
NOT necessary.
24 00 X 3F R gain
25 00 X 3F G gain
26 00 X 3F B gain

27 00 X 3F R reference
28 00 X 3F G reference
29 00 X 3F B reference



VERTICAL PICTURE ADJUSTMENTS

Code Min. Approx. Max. Adjustment Note!
value
12 00 1F 3F Picture height
16 00 X 1F Height compensation Set brightness and contrast to 20%. Select
code 12 and adjust the picture height. Store
the adjustment by pressing the blue button.
Set brightness and contrast to 90%. Select
code 1 6 and compensate the change in
picture height. Store the adjustment by
pressing the blue button.
13 00 1F 3F Linearity
14 00 1F 3F S-correction
15 00 1F 3F Vertical shift A basic adjustment according to the picture
tube. Make only after chnaging a picture
tube.
34 00 1F 3F Vertical shift




HORIZONTAL PICTURE ADJUSTMENTS

Code Min. Approx. Max. Adjustment Note!
value
17 00 1F 3F Picture width
21 00 X 1F Width compensation Set brightness and contrast to 20%. Select
code 17 and adjust the picture width. Store
the adjustment by pressing the blue button.
Set brightness and contrast to 90%. Select
code 21 and compensate the change in
picture height. Store the adjustment by
pressing the blue button.
11 00 1F 3F Horizontal position
18 00 1F 3F Parabola
19 00 1F 3F Corners ;
20 00 1F 3F Trapezoidal correction
THE OTHER ADJUSTMENTS

Code Adjustment Note!
31 L/R Cross Talk Apply right channel stereo signal. Con-
nect an oscilloscope to the pin 14 of
ICd3. Adjust the audio signal for mini-
mum

35 Tuner AGC Apply a 1 mV (60 dB^iV) test signal.
Adjust the picture just without noise.

38 Tuner AGC Early production only.
38 Reference oscillators Code selection corresponds to short
circuit at pin 1 7 of ICe2. See "Reference
oscillators" (page 12, step 2).

39 Y-delay control for Rf memory locations
40 Y-delay control for Sat memory locations
41 Y delay control for AV memory locations




SERVICE ADJUSTMENTS

U POWER SUPPLY BLOCK II PICTURE AND SOUND IF MODULE
Supply voltage and protection circuit IF filters (11501 module only)

1. Set brightness and contrast to normal level. Connect 1. Apply a L standard (AM sound) colour bar test signal.
an universal voltmeter to the cathode of Du1.
2. Press the PRG button and after that the red button on
2. Adjust with Pu2 the DC voltage for +138V (±2 V). the RC hand unit. Select the French channel table (L-
standard) by entering e.g. 305 (= channel 05 of the
channel table 3) with the number buttons.

3. Connect an oscilloscope to the pin 4 of ICH.
Z HORIZONTAL DEFLECTION BLOCK
4. Adjust with Li8, Li7 and Li6 the DC voltage for mini-
Horizontal linearity
mum.
Adjust with Lz3.
Note! The French channel table stays valid until a new
will be selected.
Focusing
For Service Manuals Contact
Set brightness and contrast to normal level. Use cross MAURITRON TECHNICAL SERVICES
8 Cherry Tree Rd, Chinnor
hatch pattern and adjust the picture for optimum resolut- Oxon OX9 4QY
ion. Tel:-01844-351694 Fax:- 01844-352554
Email:- [email protected]


Screen grid voltage

1. Set contrast to minimum, brightness and colour satu-
Clamp pulse
ration to normal level.

2. Use an oscilloscope and control the amplitude of the
inserted black level clamp pulses during 3 line periods
after vertical blanking on the ICg1 output pins 9, 12
and 15 of the CRT Module (test points 71,73 and 74). 140V

3. Adjust with Ug2 (SCREEN) control the amplitude of
the highest clamp pulse to +140V (see figure).
0 V-

11
Video demodulator
E COLOUR DECODER BLOCK
1. Apply a colour bar test signal (1 mV = 60 dB^V). Ge- Reference oscillators
nerator tuned for some channel 7... 11 in VHP III band.
1. Connect a PAL colour bar test signal.
2. Adjust with Li6 (11501, Li9) grey areas to equal grey,
the crossings on both sides of white vertical line to 2. Remove jumpperJel 9 and connect pin 17 of ICe2to
symmetric without oscillations and the change from the ground.
black to white without reflections. Note! Jumper removal and short circuit are NOT ne-
cessary if the |iP software version is 10 or later. See
service adjustments via IIC (Code 38).
Tuner AGC
3. Adjust colours straight with Ce19.
See service adjustments via IIC, Code 35.
4. Connect a 3,58 MHz NTSC colour bar test signal via
Scart connector. (For the NTSC models only)
Quasi split sound demodulator
5. Adjust colours straight with Ce18.
1. Apply a CCIR B/G standard (FM modulated sound)
test signal. 6. Remove the link, connect the jumpper Je 19 and
check that the colours stay on their own places.
2. Connect an oscilloscope to the module pin 14

3. Adjust with Lit the video modulation for minimum. SECAM colour filter

1. Connect a SECAM colour bar test signal.
Sound demodulators 5,5 (15,74 MHz , 11510)
2. Connect an oscilloscope to the pins 1 (R-Y)andS(B-
1. Apply a test signal with modulated 5,5/5,74 MHz Y) of ICe2, test points 18 and 17.
stereo carriers according to A2 standard.
3. Adjust with Le2 so that pattern is equal at the R-Y and
2. Connect an oscilloscope to the TP2. B-Y outputs.
3. Adjust with Li2 the audio signal for maximum without
distortion. SECAM demodulator
4. Connect the oscilloscope to the TP3. 1. Connections as above.
5. Adjust with Li3 the audio signal for maximum without 2. Adjust with Le1 and Pel so that the uncoloured parts
distortion. of the test chart are uncoloured.

3. Remove the measuring cables.
Crosstalk attenuation
4. Fine adjust colours equal and edges of the colours
See service adjustments via IIC (Code 31). sharp with Le2.


Sound demodulator 6,5 MHz (11501 module only)

1. Apply a test signal with modulated 6,5 MHz sound
carrier.

2. Press the PRG button and the red on the RC hand
unit and select the East-European channel table
(OIRT) by entering e.g. 205 (= channel 05 of the
channel table 2) with the number buttons.

3. Connect an oscilloscope to the TP2.

4. Adjust with Li13 the audio signal for maximum
without distortion.

Note! The East-European channel table stays valid
until a new will be selected.



12
A
OTVC Finlux 5021A20GR, 5021F12GR, 5025K10GR, 5025F12GR, 5028K10GR, 5028F12GR
Baza Porad Serwisowych
B Baza Porad Serwisowych
C Baza Porad Serwisowych
D Baza Porad Serwisowych
E Baza Porad Serwisowych
F Baza Porad Serwisowych
G
# COMPONENTS FOR NTSC 3,58 VIA SCART 401551
AB 51¬ ONLY Cu1 Lu3 Mu1
Rd1 10k Rd2
SERVICE CONNECTOR Cf1 Cf2 Rf9 FC E 3,3V
EHT 330p 3µH
4 3 Lu4 3µH ICu2




Cd2 15n
Cd3 15n
Cd4 3n3
Cd1
Cd6
100k
Rp8 2,2 27,7V Ca9 4n7 100µ
Lf1
10µH 10k +12Vp